15204130553 has 4 divisors (see below), whose sum is σ = 15412406388. Its totient is φ = 14995854720.

The previous prime is 15204130549. The next prime is 15204130567. The reversal of 15204130553 is 35503140251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3110069824 + 12094060729 = 55768^2 + 109973^2 .

It is a cyclic number.

It is not a de Polignac number, because 15204130553 - 2² = 15204130549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15204130453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104137808 + ... + 104137953.

It is an arithmetic number, because the mean of its divisors is an integer number (3853101597).

Almost surely, 2^15204130553 is an apocalyptic number.

It is an amenable number.

15204130553 is a deficient number, since it is larger than the sum of its proper divisors (208275835).

15204130553 is an equidigital number, since it uses as much as digits as its factorization.

15204130553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208275834.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 15204130553 in words is "fifteen billion, two hundred four million, one hundred thirty thousand, five hundred fifty-three".